Move nsPluginStreamListenerPeer to its own files, clean up the plugin host. b=578447 r=benwa

modules/plugin/base/src/Makefile.in

@@ -61,6 +61,7 @@ CPPSRCS		= \
 		nsNPAPIPlugin.cpp \
 		nsNPAPIPluginInstance.cpp \
 		nsNPAPIPluginStreamListener.cpp \
+		nsPluginStreamListenerPeer.cpp \
 		nsPluginHost.cpp \
 		nsPluginModule.cpp \
 		nsJSNPRuntime.cpp \

modules/plugin/base/src/nsPluginStreamListenerPeer.h

@@ -0,0 +1,160 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Sean Echevarria <sean@beatnik.com>
+ *   Håkan Waara <hwaara@chello.se>
+ *   Josh Aas <josh@mozilla.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#include "nscore.h"
+#include "nsIFile.h"
+#include "nsIStreamListener.h"
+#include "nsIProgressEventSink.h"
+#include "nsIHttpHeaderVisitor.h"
+#include "nsWeakReference.h"
+#include "nsNPAPIPluginStreamListener.h"
+#include "nsHashtable.h"
+
+class nsIChannel;
+
+/**
+ * When a plugin requests opens multiple requests to the same URL and
+ * the request must be satified by saving a file to disk, each stream
+ * listener holds a reference to the backing file: the file is only removed
+ * when all the listeners are done.
+ */
+class CachedFileHolder
+{
+public:
+  CachedFileHolder(nsIFile* cacheFile);
+  ~CachedFileHolder();
+  
+  void AddRef();
+  void Release();
+  
+  nsIFile* file() const { return mFile; }
+  
+private:
+  nsAutoRefCnt mRefCnt;
+  nsCOMPtr<nsIFile> mFile;
+};
+
+class nsPluginStreamListenerPeer : public nsIStreamListener,
+public nsIProgressEventSink,
+public nsIHttpHeaderVisitor,
+public nsSupportsWeakReference,
+public nsINPAPIPluginStreamInfo
+{
+public:
+  nsPluginStreamListenerPeer();
+  virtual ~nsPluginStreamListenerPeer();
+  
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIPROGRESSEVENTSINK
+  NS_DECL_NSIREQUESTOBSERVER
+  NS_DECL_NSISTREAMLISTENER
+  NS_DECL_NSIHTTPHEADERVISITOR
+  
+  // nsINPAPIPluginStreamInfo interface
+  NS_DECL_NSIPLUGINSTREAMINFO
+  
+  // Called by RequestRead
+  void
+  MakeByteRangeString(NPByteRange* aRangeList, nsACString &string, PRInt32 *numRequests);
+  
+  PRBool UseExistingPluginCacheFile(nsPluginStreamListenerPeer* psi);
+  
+  // Called by GetURL and PostURL (via NewStream)
+  nsresult Initialize(nsIURI *aURL,
+                      nsIPluginInstance *aInstance,
+                      nsIPluginStreamListener *aListener,
+                      PRInt32 requestCount = 1);
+  
+  nsresult InitializeEmbedded(nsIURI *aURL,
+                              nsIPluginInstance* aInstance,
+                              nsIPluginInstanceOwner *aOwner = nsnull);
+  
+  nsresult InitializeFullPage(nsIURI* aURL, nsIPluginInstance *aInstance);
+  
+  nsresult OnFileAvailable(nsIFile* aFile);
+  
+  nsresult ServeStreamAsFile(nsIRequest *request, nsISupports *ctxt);
+  
+  nsIPluginInstance *GetPluginInstance() { return mInstance; }
+  
+private:
+  nsresult SetUpStreamListener(nsIRequest* request, nsIURI* aURL);
+  nsresult SetupPluginCacheFile(nsIChannel* channel);
+  
+  nsCOMPtr<nsIURI> mURL;
+  nsCString mURLSpec; // Have to keep this member because GetURL hands out char*
+  nsCOMPtr<nsIPluginInstanceOwner> mOwner;
+  nsCOMPtr<nsIPluginInstance> mInstance;
+  nsCOMPtr<nsIPluginStreamListener> mPStreamListener;
+  
+  // Set to PR_TRUE if we request failed (like with a HTTP response of 404)
+  PRPackedBool            mRequestFailed;
+  
+  /*
+   * Set to PR_TRUE after nsIPluginStreamListener::OnStartBinding() has
+   * been called.  Checked in ::OnStopRequest so we can call the
+   * plugin's OnStartBinding if, for some reason, it has not already
+   * been called.
+   */
+  PRPackedBool      mStartBinding;
+  PRPackedBool      mHaveFiredOnStartRequest;
+  // these get passed to the plugin stream listener
+  PRUint32                mLength;
+  PRInt32                 mStreamType;
+  
+  // local cached file, we save the content into local cache if browser cache is not available,
+  // or plugin asks stream as file and it expects file extension until bug 90558 got fixed
+  nsRefPtr<CachedFileHolder> mLocalCachedFileHolder;
+  nsCOMPtr<nsIOutputStream> mFileCacheOutputStream;
+  nsHashtable             *mDataForwardToRequest;
+  
+  nsCString mContentType;
+  PRBool mSeekable;
+  PRUint32 mModified;
+  nsCOMPtr<nsIPluginInstance> mPluginInstance;
+  PRInt32 mStreamOffset;
+  PRBool mStreamComplete;
+  
+public:
+  PRBool                  mAbort;
+  PRInt32                 mPendingRequests;
+  nsWeakPtr               mWeakPtrChannelCallbacks;
+  nsWeakPtr               mWeakPtrChannelLoadGroup;
+};